docs(architect): weekly KB update — 106 files refreshed (2026-04)

Updates across all 5 skills: ms-ai-advisor, ms-ai-engineering,
ms-ai-governance, ms-ai-security, ms-ai-infrastructure.

Key changes:
- Language Services (Custom Text Classification, Text Analytics, QnA):
  retirement warning 2029-03-31, migration guides to Foundry/GPT-4o
- Agentic Retrieval: 50M free reasoning tokens/month (Public Preview)
- Computer Use: Claude Sonnet 4.5 (preview) + OpenAI CUA models
- Agent Registry: Risks column (M365 E7), user-shared/org-published types
- Declarative agents: schema v1.5 → v1.6, Store validation requirements
- MLflow 3: 13 built-in LLM judges, production monitoring, Genie Code
- AG-UI HITL: ApprovalRequiredAIFunction (C#) + @tool(approval_mode) (Python)
- Entra ID Ignite 2025: Agent ID Admin/Developer RBAC roles, Conditional Access
- Security Copilot: 400 SCU/month per 1000 M365 E5 licenses, auto-provisioned
- Fast Transcription API: phrase lists, 14-language multi-lingual transcription
- Azure Monitor Workbooks: Bicep support, RBAC specifics
- Power Platform Copilot: data residency (Norway/Europe → EU DB, Bing → USA)
- RAG security-rbac: 4-approach table (GA + 3 preview access control methods)
- IaC MLOps: Well-Architected OE:05 principles, Bicep/Terraform patterns
- Translator: image file batch translation Preview (JPEG/PNG/BMP/WebP)

All 106 files: Last updated 2026-04 | Verified: MCP 2026-04

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

skills/ms-ai-security/references/cost-optimization/observability-cost-reduction.md

@@ -1,6 +1,6 @@
 # Observability and Monitoring Cost Optimization
 
-**Last updated:** 2026-04
+**Last updated:** 2026-04 | Verified: MCP 2026-04
 **Status:** GA
 **Category:** Cost Optimization & FinOps for AI
 
@@ -169,6 +169,8 @@ builder.Services.AddApplicationInsightsTelemetry(new ApplicationInsightsServiceO
 | **Alerts** | Støttes | Støttes ikke | Støttes ikke |
 | **Retention** | 30-730 dager | 8 dager interactive + long-term | Long-term kun |
 | **Pris (ingestion)** | Standard | ~50% lavere | ~75% lavere |
+| **Workspace replication** | ✅ | ✅ | ❌ (data ikke replikert — ingen beskyttelse ved regional feil) |
+| **Customer Lockbox** | ✅ | ✅ | ❌ (Lockbox-grensesnitt gjelder ikke for Auxiliary-tabeller) |
 
 **Beslutningstre:**
 1. **Trenger du real-time alerting?** → Analytics
@@ -441,7 +443,7 @@ For volumer >1 TB/dag, vurder dedicated cluster for ytterligere besparelser (clu
 
 10. **Azure Monitor Logs overview: Table plans:**
     https://learn.microsoft.com/en-us/azure/azure-monitor/logs/data-platform-logs#table-plans
-    *Confidence: Verified* – Analytics, Basic, Auxiliary table plans.
+    *Confidence: Verified (MCP 2026-04)* – Analytics, Basic, Auxiliary table plans. Oppdatering 2026-04: Auxiliary-plan bekrefter ingen workspace replication (data ikke beskyttet mot regional feil) og ingen Customer Lockbox-støtte.
 
 ### Norsk lovverk (Baseline-kunnskap)